Stanley cups: Customers sue over presence of lead in popular tumblers – National [Video]

The popular Stanley cups are seemingly everywhere, but that doesn’t mean every customer is thrilled with the product.

Two Stanley tumbler owners have filed a lawsuit in California alleging the cup-maker’s parent company, Pacific Market International, was negligent in disclosing the presence of lead in the viral product.

According to Bloomberg, the proposed class action lawsuit surrounds the company’s vogue Adventure Quencher tumblers, which are insulated, stainless steel cups that feature a removable lid, a bulky handle and reusable straw.

In January, Stanley released a statement that confirmed their products are manufactured using lead, which is highly toxic. However, the company maintained their cups are still safe to use because the small amount of lead is found only in part of the tumbler’s vacuum seal insulation at its base, which is covered by a stainless-steel layer.

Stanley assured its customers there is very little possibility of lead exposure.

“Rest assured …